EP 0372607 A2 19900613 - A sliding rule for conversion tables, address directories and similar references, made of cardboard or the like.
Title (en)
A sliding rule for conversion tables, address directories and similar references, made of cardboard or the like.
Title (de)
Rechenschieber aus Karton oder dergleichen für Konvertierungstabellen, Adressenverzeichnisse und ähnliche Referenzen.
Title (fr)
Règle à calcul en carton ou similaire pour table de conversion, répertoires d'adresses et références similaires.
Publication
Application
Priority
IT 6810088 A 19881209
Abstract (en)
The sliding rule comprises a flat, window-bearing sheath of a stiff material, in which a sliding tablet of the same material is received, the sheath and the sliding tablet bearing correlated inscriptions or pictures. According to the invention, the sliding rule is made from a single blank of said stiff material, comprising a first and a second board (10, 12), of which at least one has windows, integrally joined and folded one upon the other and laterally bonded to form said sheath, and a third board (14) which is end-joined to said second board through an intermediate area (23), and is folded between said first and second board around a folding line (18) at the midline of said intermediate area, the intermediate area being removed for using the sliding rule, said third board acting as sliding tablet.
IPC 1-7
IPC 8 full level
G06G 1/06 (2006.01)
CPC (source: EP)
G06G 1/06 (2013.01)
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 0372607 A2 19900613; EP 0372607 A3 19901003; IT 1223984 B 19900929; IT 8868100 A0 19881209
DOCDB simple family (application)
EP 89202934 A 19891120; IT 6810088 A 19881209